Air-compressor.



E. P. GALLAUDET.

AIR COMPRESSOR.

APPLIGATION FILED MAR. 8. 1909.

Patented Man 22, 1910.

8 SHEETS-SHEET 1.

- E. F. GALLAUDET.

AIR COMPRESSOR.

APPLIGATION FILED 1\IAR.8,1909. 952,798. Patented Mar. 1910 8 SHEETS-SCBET 2 5 Al i 10/ //r @LZFI;

I 5 V ...2.i V ill/7 -5% E. P. GALLAUDET.

AIR COMPRESSOR.

Patented Mar. 22, 1910. a SHEBTSSHBET s.

E. F. GALLAUDET.

AIR COMPRESSOR.

APPLIOATIOF TILED MAR. a, 1909.

Patented Mar. 22, 1910.

8 SHEETS-SHEET 7.

aswcukoz E. F. GALLAUDET. AIR COMPRESSOR.

APPLICATION FILED HA3. 8, 1909.

952,798. Patented Mar. 1910.

8 8HEET8-SHEET 5.

I H, t

E. F. GALLAUDET.

Patented Mar. 22, 1910.

8 SHEETS-SHEBT (7 E. F. GALLAUDET.

' AIR. GOMPRESSOR.

APPLICATION mum MAE. s, 1909.

Patented Mar. 22, 1910 a SHEETS-SHEET 7.

amaanlfoz q State of Connecticut, have invented certain I .cylinders. Figs. 9 and'lO are detail views 1 4O 12 is a detall in section of connection beair compressors and particularly adapted to multiple stage coolers and my improvement, in a broad sense, consists in improving the cylindersis located between the cylinders near the bottom of the machine in a subtion of the universal connection between the of Fig. 2, the arrangement of parts is such the top of the machine neartone'side thereof --omrp STATES PATENT EDSON F. GALLAUDEE 'OF NCRWICH, CONNECTICUT, ASSIGNOR TO THE PLATT IRON WORKS COMPANY, OF DAYTON, OHIO, A CORPORATION GI CHIC.

AIR-COMPRESSOR.

952,798. p ifi ti of Letters ment- Patented Mar. 22, 1910.

Application filed March B, 1909. Serial No. 482,113.

To all whom it may concern: 1

Beit known that I, EDSON F. GApLnUnn'r, a citizen of the United States, residing at Norwich, in the county of New London and ders can be grouped so that the low-stage compressioncylinder will also be located at the top of the machine and to one side of the steam cylinder, while the second-stage compression cylinder will be located immediately below the low-stage cylinder, and the third and high-stage cylinders are also located in the lower or bottom part of the machine and immediately below. the steam cylinder. The ene'ral arrangcment of the cooling system is such that the pump for the cooling medium may be located near the bottom of the nmohine and between the new and useful Improvements in Air-Compresso'rs, of which the. following is a specificat-ion.

My invention relates to improvements in a steam air compressor for torpedoes where the air is compressed to a very high degree.

My compressor isv a multiple stage cylindercompressor with an arrangement of cooling medium will be pumped upwardly fromthe bottom of the machine through the dillerent coolers and the cooling medium circulation will thereafter be downward to the various compressors. in a general way the cooling'medium circulation follows that illustrated and fully described in the application of A. J. Pocock and R Fi. Allgire, Ser. No. 275,819, filed August 25, 1905. its explained fully in that application, the cooling medium is pumped direct to each of the .multiple stage coolers and from the coolers it circulates through the jacket of the associated air compression cylinders and thereafter is' discharged. The air circulation is from the low-stage compression cylinder to its associated cooler and thereafter to the secondstage compression cylinder efiieiency and the compactness of the device.

General .armngenwnt.-The general arrangement of the machine is such that the steam cylinder and multiple stage compression cylinders are arranged attthe top and bottom of the compressor, while'the inter-- mediate connecting 1 device for the steam cylinder and the multiple stage compressing and the pump devices for the cooling medium of the multiple stage coolers as well as the pump device for theoil are located stantially central location.

Referring to the drawings, Figure 1 is a top plan view. Fig. 2 is a sectional view taken on the line a a of Fig. 1. Fig. 3 is a rear elevation. Fig, 4 is a sectional view on the line b b of Fig. 2. Figs. 5 and 6 are detail views of the flywheel and starting mechanism. Figs. 7 and 8 are detail views of one of the multiple stage compression cooler-and thereafter to the succeeding compression cylinder and its associated cooler alwayscirculating through the various coolers and the after-cooler in a direction opposite from that of the cooling medium; Likewise, the circuit for the oiling medium is in a direction from the bottom of the machine upwardly and the same is circulated under pressure by means of the pumping mechanism located near the bottom of the machine.

of one of the compression cylinders showing the stuffing gland. Fig. 11 is a detail in secmain oil tween the steam-valve rod and rocker-arm. Fig. 13 is a top plan of one end of the rocking beam and connections. Fig. l i is a vertical section of the oil catcher.

Like parts are represented by similar characters of reference in the several views.

ring to Figs. 1. and 2, the steam cylinder 13 indicated by a and steam inlet by a, while the steam exhaust is indicated by a The piston rod, a of the piston, a", is connected to the two-part cross-head a head a is pivotally connected to one end of the'rocking-beam, a, by links, b, (see Fig. 13 for detail which rocking-beam is pivotally mounte on the hollow shaft a. rocking-beam, a, constitutes the main consupply pipe and crank-shaft. Fig.

As will'be apparent from an examination that the steam cylinder can be located at l l l while the" multiple stage compression cylinsccond and third stage cylinders and the and-from that cylinder to the next higher Steam cylinder and c0nneeti0ns.-lteter- The crossalso comprises the connection between the proved form of inlet and outlet valve mechanism for the compression cylinders.

tions on the part, 0 these projections only shoivfn at c 0; Located in the inlet opening in the lower end of the cylinder is a two necting device between the steam cylinder and the low-stage compression cylinder and the second-stage compression cylinder and steam cylinder and the various pumping devices and parts other than the thirdstage and high-stage compressors, which. latterare operated direct from the cross-head a, as clearly shown in Fig. 2. The valve-chest for the steam cylinder is indicated by a, and the valve mechanism is operated by means of the bifurcated rocker-arm, a, which is in turn operated by connections with the rocking-beam, a as will he more fully ex; plained hereinafter.

Multiple stage compressom ils hereto fore explained, one end off the rocking-beam, a, is connected to the plungers or pistons of the low and second stage compressors, which are indicated by b b. This end of the beam is pivotally connected to. a cross-head, '5 through the medium of links, 6, and the plunger, 6, of the second-stage compressor is-securely fastened to said cross-head and the piston-rod, o of the piston for the l0W- stage compressor is likewise secured to said cross-head Z). The plunger, i for the thirdstage compressor, 6, is secured. in the ordinary manner to cross-head. o and the plunger, 12', for the high-stage compressor is likewise secured to said cross head. Links, 15, pivotally connect this crossh'ead to the rotilting-beam of.

Inlet and outlet values. to compression oyZz'ngle'ra-Jn Figs. 7 and 8 is shown an inn- In these figures the valve mechanism oi the high or fourth stage compression cylinder, b, has been; illustrated. The cylinder Wall is reierahly cut away at Joints opposite thegiespective inlet and out et openings, as

part cage containing the valveniechanisin, the res ect1ve= arts of which are re resented P. by c 0 The part 6 .ll9;S a series or air inlets c and also an extendrn r steina a which 3, 7 e u 2 pro ects into the central chambered portion of the part, 0 and has an interlocking con ncction therewith by pro ecting into a groove-way 1n the end of the stern pro3ecextending part Way around the stern so that bv insertin the same and ivln it a quarter u D a: A turn the pro3ections will be caused to engage 1n the groove. A spring, a, is placed about the stem and bears against the valve proper, which is in the form of a disk 0, pertorated to receive the stern, and which bears against the part, 0 which is faced ed to receive the same, so as to normally close the opening 1n said'part o; the adgacent end of the part, c, havin an enlar 'ed chamber or recess to rew a u come this dish. The part chas a series or openings, 0 leading from the enlarged chamber or recess into the cylinder. .llso' located in the part 0 and leading from the cylinder into the small spring chamber is a series oi openings so that. after a charge of air has been drawn into the cylinder and the plunger descends" to compress thev same, a certain amount of the air will. be forced through said openings (2 to assistthe spring in forcing thedisk c tightly against its seat so as to securely close the inlet openings in the part 0 The inlet is provided with an opening in which is screwed a plug, 0*, having a stullinghoxin the outer end. liocatcd in the plug, preferably screw-threaded therein, is an adjustable thrust-screw, 11'", the end of which bears against the part, r,

of the valve cage, to hold the same in po- 'thevalve mechanism of the outlet opening 153 also in two parts, 0 c fitted to the inlet opening and to each other in the same manner as described in connection with the valve mechanism for the inlet opening; the pro jecting stem, 0, however, being located on the opposite part to that of the other valve mechanism, with the spring receiving chamher in' theother part so that the spring will og vhorce'the valve disk, against, the part c". l

The part 0 has one or more 0 enings, c", communicating with the air out et froni'the cylinder so that the compressed air will.

assist in holding the valve'dislr to its seat. 5

floating medium, circuit-ts shown in Fig. l, the pump for the cooling medium is a rotary pump ofsubs'tantially the same constructiomas that shown and fully descrihed in the pending application referred to, indi- 11o cated by the reference letter, (Z. The actusiting; mechanism. for the rotary pump and the shaftsupportinp; the same is through the devices connected to said rocking-beam, a. intermediate the'hollow shalt, a and the end of the rocking-beam there is pivot ally connected therewith, as clearly shown in Fig. 52, a connecting rod, al and this con necting rod, al at its free end is pivotally" connected to the cranlopin, d of the cranlz-- shalt, d journaled in snitahle hearings in themain frame; (in one side ol 'the crank pin is an integral gear, at, meshing Within gear d on the pure shaft 65, to which shaft is connected'hoth t e rotary iistons oi the.

scares catcd at'd l) and this cooling me- I dium ispumped by the rotary pump, (Z, direct to the coolers and after-cooler by the 1 ipe connection (1 Examining Fig. 1 it will be seen that the various coml pressors and coolers are so arranged in series that the low-stage compressor and the sec ond-sta e compressor are in close proximity I to the rst and second coolers, g and g and 1 the-third and high stage compressors are located in close proximity to the'third and i after-coolers, g and g. In this way, after i the cooling medium has circulated through 1 the cooler itpasses to the jacket of its assol ciated compressor. It will only be necessary 1 to explain the circulation of the cooling medium through one of the coolers and jacket of its associated compressorflsince the arrangements are duplicated through the machine. Referring to the first cooler, the cooling medium passes out of the top of that I cooler to the jacket of the first-stage coml l l pressor through the pipe 61 (Fig. l) and from that compressor the 'water passes through the pipe, d, to the discharge opening indicated by d. The cooling medium' passes from the second-stage cooler to the jacket of the secondstage compressor through the pipe, d, in a downward direction, as appears clearly in Fig. 3, and thence to the common discharge opening, 4Z through the pipe, d (Fig. 3). I

Air 0ircuZati0n.-The air inlet is indicated v bythe'reference letter, 6, (Fig. l) and it passes from the low-stage compression cylinder, b ,-,to the first-stage cooler through the pipe 5 and as heretofore explained in i .1- -;the .co-pending application of Pocock and Allgire, the air passes through the low-stage and the second-stage cooler around the con- .duitsor tubes, 6 (Fig. 3) and the cooling medium tirculates through said tubes, while in the third-stage coolers and the after- 1 cooler, the cooling medium passing around 45 the tubes, 6 while the circulates through said tubes. The air passes from the firststage cooler and from the bottom thereof to the cylinder of the second-stage through a pipe connection arranged similar to that'l shown in Figs, 1 and 2 connecting the thirdl stage cooler and the fou.rtlistagc compressor 1 l marked 6, and from the cylinder of the second-stage compressor the air passes upwardly through the pipe (Fig. 3) to a point nearthe top of the second stage cooler and fromfthe cooler it passes into the third st ecomprcssor andthen to the third-stage coo er and from thecooler to the high-stage compressor and then to the after-cooler and .from the after-cooler to the air outlet, a

(Figs-1 and 3).

As indicated in Fig. 1, the third-stage cool er and the after-cooler so arranged that the air passes downward at one side of .5 the coolcr and upward the ot ier side,

cated extensions, a

1 mounted ablock, a,

the air both entering and discharging at the upper end of these particular coolers.

Steam valve. operating mechanism-As before stated, the valve mechanism of the steam cylinder is operated from the rockerwhich is connected to the cranksecured to the end of the crankarm, a, pm, a,

shaft, through the medium of the rod, a,

which rod is pivotally connected to the end of the crank-arm, a", on the hub, a, of the 5 rocker-arm, which hub is pivoted on the rod, a, supported in suitable brackets from the main frame. The rocker-arm has two bifurw at its forward end, (see Fig. 12 for detail) in each of which is go the bifurcated end 'be- 1 ing capable of a movement independent of said block. Pivot-ally mounted in the blocks, a, is a head, a, to which the valve rod, a is connected. Arranged on each side of this head are guide-ways, a, between which the head slides when the rocker-arm is rocked in either direction.

Oil circuit.-Coupled to the driving gear,

, (Z is a shaft, upon which is secured the pistons of a main oil pump, f and an auxiliary oil pump, f the main pum' being located in the chamber or casing, f in which the oil from most of'the bearings of the machineis'caug ht' The auxiliary oil pump is located without this casing and is connected by a pipe, with an 'oil catcher, f whichv lies closely adjacent to the flywheel and surrounds the .fly wheel bearing. This oil catcher isshown in detail in Fig. 14. i .re resents one side or wall which complete v, surrounds the bearing forthe flywhee The wall, f, completel surrounds the flange, d to which the flywheel is bolted, with the exception of an openin f", therein which communicates with the lower chamber, f, of the catcher-which is formed by the wall, f, andtl e wall, j", which wall f overlaps the wall f and extends partly about the flange d. I

Both oil pumps communicate with a chamber, f, a check-valve, f" being located between the chamber and the auxiliary pump. This chamber connnunicates with the vertical pipe, f t, through the medium of 1 a short ipe" Oil is delivered under; pressure rom this pipe to the hollow crank shaft, (Z through a universal connection; This universal connection is shown in detail in Fig. 11. valve crank pin, a, is a. socket plate, f, which receives a ball sleeve, f held in place by the plate, f which is secured to the socket plate f. The ball, f, is screwed onto the end of the ball sleeve, P, which fits in a socket in the connecting piece, f fo'rming a part of the supply pipe f. The plate ff", secured to the connectin piece f holds the ball, f, in position indie socket;-

Fromthe hollow craiilc shaffltlie oilfpas ses' i Screwed .into the end of the I through the channels f i) to the crunk-sluift bearings, and through the chunncl, f, (Figs. 2 and 4i) to the hezirings or journals of the crank and connecting rod, d. A channel, f flcxtcnds about lhe connecting-rod bearing and is connecled by the passageway, 1", extending up through the connecting-rod with the conneciing-rod wrist-pin. 'lhrough the conneciion, f, the

oil is forced into the hollow iii, M, on which the roclrnw-bcum 1S yourm ed; thence through channels, 7 to hearings;

Y theipivots f, of the c bearings thence through channels, f, for the links, 1). Que brunch, connection, f supplies Oll for iih for the rocker-arm a throu 'h medium 7 7 m of the drips, f. Another brunc i, j, ex

,in the cylinder is a series of. ii steam. cylinder iuid ll. pliiriiiily oi? mill tends over a funnel or cup, f, connected to 1; one of the trunnions oi the head 0; {1* 1g. 12) to which the steam valve rod is con nected so as to'supply oil to a series oi channels 111 Sold head and the blocks a.

The connecting rod, 0;, which operates the flange [L2 cliche gland. Screw'o who these studs above the flange are 1; one, hleshing with the respcctive pinlons is c. large gear, ii, located on the flange oi: the gland. between the pmions end the glam: proper.

Pivoted ate suitable point on the gland:

flange is a lever, in, carrying pinion FL" moshing with ihc geur Zr. .lly operating the lever all of the. pinions, Ii, may he turned down ego. ust the flange and force lhc'glzuid down uniformly into the Binding box.

Having thus described.

my invention, 1

1. In. an air compressor, the combination and 10 is illustrated the manner.

coerce tiple stage air compressors, three of said conmrcssors being located at; the lower art of the machine and one located at the si e-of sziid steam cylinder and in the upper part of the machine, a plurality 0 coolers one adjacent to each air compressor, s' pump for the cooling medium in the bottom parb'of the machine, connections extending upwardly direct to each cooler, and 21 common discharge pipe for said coolers, substantially as specified.

3. in an air compressor, the combination of a steam cylinder and a plurality of multiple siege air compressors, the high stage compressors being located directly below the steam cylinder and the two low stage compressors at the side of said high stage comprcssors, a plurality of coolers, and connections for carrying the cooling medium from each coolertl'irectto its associated compression cylinder jacketand thereafter to the common discharge pipe, substantially as specified. l

of a steam cylinder'and a plurality of multiple slugc air compressors, the high stage compressors being located directly belowthe steam cylinder and the two low stage compressors at the side of said high stage compressors, a plurality of coolers, and connections for carrying the cooling medium from each cooler direct to i'is associated compression cylinder jacket and thereafter to the common discharge ipe, a pump for the cooling medium at the ottom of the machine, on oil pump also located at the bottom'oi' the 4. in an air compressor, the combinationmachine, and independent connections exicuding'upwardly from each pump, substantially us specified.

in an air co1npressor', the combination of u imiin operutingdcvice and :iplurality oi. compressors and plungers therefor coupled. together end located directly opposite the niz in operuiing device, additional compressors, on'inlcrinediulc connecting device ho'rwoen suid operating device and sand edditional compressors, sold lust-mentioned compressors being located one above the other, a plurality oil coolers so arranged that one cinder is adjacent to each compressor, and a roiury plunp for the cooling medium locaited heiween-dlro 'COKBQIBSSOIS under, the lower.

port of the machine, suhstuntially asspccipump for the cooling medium located be.- twecn the con'iprcssors and at the lower part of the machine, for the purpose specilicd.

7. In an air compressor, an operating device, and a plurality of compressors directly opposite said device. and additional compress ors in proximity thereto, a rocking beam intermediate said ops-rating device and said additional con'ipressors, coolers. and a cooling medium pump operated by said operating device. connections extending upwardly from said pump to said coolers, and connections extending downwardly from said coolers to the compression jacket, an air conduit from each compressor to its associated cooler carrying the compressed air in a direction reverse to that of the coolingmedium.

in an air compressor, an operating device. and a plurality of compressors directly opposite said device and additional comprcssors in proximity thereto, each of said compressors ha ving a cooling medium jacket, a ro ltingbcam ii'itcrmediate said operating device and additional compressors, coolers, and a cooling medium pump operated by said operating device; connections from said pump extending upwardly to the bottom of each cooler. and connections extending downwardly 'lrom said coolers to the compressor jackets. and air conduits extending' from each compressor to the top of the associated cooler carrying the compressed air in a direction reverse to that ol the cooling medium, substantially as specified.

i In an air compressor, the main operating device and a plurality of compre )r plungcrs coupled together directly opposite said operating.device. a plurality ot compression pistons on the side opposite the lirst mentioned compressor plungers, a rockingbeain connecting said pistons with the operating device, coolers at the side of each of the. compressors, a pump and connections extending direct to each cooler, and a connnon discharge pipe for all of said coolers, substantially as described.

10. In an air compressor, the main oper ating device and a plurality of con'ipressor plunger-s coupled together directly opposite said operating device, a plurality of compression'pistons on the side opposite the first mentioned compressor plungers, a rocking beam COLLIQLElIlHg said pistons with the oper ating device, coolers at the side of each of the compressors, a pump and connections extending direct to each cooler, and a common discharge pipe lior all o'l said coolers, an oil pump, and connections extending upwardly to the bearings for said rocking beam. substantially as specified.

11. In an air compressor, a rocking beam, :1 steanrcylinder located on one side of one end of said beam having a piston pivotally connected with said beam, an air compressor also located at the same end of said beam in line with said steam cylinder but on the opposite side of the beam therefrom, the piston or plunger of said compressor having a connection with said steam-cylinder piston, and an air compressor located on each side of the opposite end of said beam, the pistons or plungers of said air compressors having a pivotal connection with said beam, sub

stantially as specified.

12. In an air compressor, a rocking beam. a steam cylinder located on one side of said beam at the end thereof having its piston pivotally connected with said beam, a high and third stage (.(lll'llll'tZSSOl' located side by side on the opposite side of said beam from said, steam cylinder and in line therewith, the pistons or plungers of said compressors having a connection with said seani cylinder piston, and a low-stage and second-stage compressor located on opposite sides of the opposite end of said beam, the pistons or plungers of said compressors having a piv otal conpection with said beam, substantially as spcci lied.

13. in an air compressor, a rocking beam. a steam cylinder located on one side o't said beam at the end thereof, a head to which the piston of said steam c ,'linder is connected.

said head being pivotally connected with said beam, an air compressor located on the opposite side of said beam from said cylinder and in line therewith, the piston or plunger of said air compressor having a connection with said head, an air compressor located on each side of the opposite end of said beam in line with each other, a hcad to which the pistons or plungers (it said air compressors are connected, and a pivotal connection between said beam and last-naincd head, substantially as specified.

In testimony whereof, I have hereunto set my hand this 13th day of February .1909.

EDSON l G.-\Lln-iUI)El.

Vitnesses F. M. GALLAUDE'I, Josnrn 'l. Fannme. 

